Veneer-cutting knife



J. MARK a-W. P. MAVRTINEK.

Patented Nov. 8,18811.

UNITED STATES PATENTN OFFICE.

HENRY J. MARK AND WILLIAM F. MARTINEK, OF ST. LOUIS, MISSOURI.

VENEER-CUTTING KNIFE.

SPECIFICATION formingpart of Letters Patent N o. 249,379, dated November8, 1881.

Application tiled July 28, 1881. (No model.)

To all whom 'it may concern:

Beit known that we, HENRY JOSEPH MARK and WILLIAM FRANcIs MARTINEK, ofSt. Louis, in the county of St.-Lonis and State'of Missouri, haveinvented a new and Improved Veneer-Cutting Knife; and We 'do herebydeelare thatthe following is a full, clear, and exact description of thesame, reference being had to the accompanying drawings, forming part ofthis specification, in Which- Figure l is aside view; Fig. 2, an edgeview Fig. 3, a perspective view, and Fig. l a sideV view from the sideFig. l.

The object of our invention is to provide a knife for a veneer-cuttingmachine whichshall cut from a solid block of wood veneers with permanentcorrugations in them, which veneers are designed to be used forbottle-wrappers or like purposes. i

Theinvention consists in a knife havin ga corrugated edge, and upon eachside a series of alternating grooves and ridges arrangeddiagonally tothe edge and parallel to each other, running from the edge of the knife,and hav ing upon one side a plain rabbeted surface for bolting the knifeto its holding-frame, as hereinafter fully described.

In the drawings, A represents such a knife having a corrugated orwavededge, from which there extends across the face of the blade, on eachside, parallel grooves and alternating ridges. These grooves and ridgesare arranged diagonally or atan angle to the edge, as shown. Thiscorrugated edge ofthe knife not only cuts opposite to that shown in acorrugated veneer from the block, but its corrugation gives suchstrength to the edge as against bending or buckling when in action as tosecure a uniform thickness of veneer, and permits also the edge to bemade relatively thin for an easier and smoother cutting-action. Theobject in extending the grooves and ridges entirely across'the face ofthe blade is to give a better clearance for the veneer being cut, and topermit the knife to be sharpened without Upon one side of the blade,near its back edge, a smooth recessed face, c, is preserved for abutmentagainst the frame to which it is to be secured.

This knife is to be made of steel or ang,Y other metal, and may be madelwhole or in sections, as desired.

We are aware that a veneer-cutting knife has been heretofore constructedin the form of a bar bent in a wavedmanner, and that adiagonally-grooved sickle-edge is not new in cntting-tools, and We donot claim these features.

Havin g thus described our invention, what we claim as new is- Aveneer-cutting knife having a waved cutting-edge with alternatinggrooves and ridges extending across both faces parallel to each otherand diagonal to the edge, and having also a plain rabbeted surface, c,for attachment to its holdin g-frame, as and for the purpose described.p

HENRY JOSEPH MARK; WILLIAM FRANCIS MARTINEK.

Witnesses:

J 0s. F. BAIEE, TILDEN S. FUNItIIoUsER.

vthe necessity of grinding away so much metal. Y

